While attention in the Gulf has mostly focused on oil, the explosion and spill also released tremendous amounts of natural gas. David Valentine, a microbial geochemistry professor at UC Santa Barbara, and his research team, have been studying the behavior and distribution of these natural gases, their impacts on the ocean ecosystem and the bacteria that consumes them. He is the lead author in a study just published in Science (See http://www.sciencemag.org/cgi/content/abstract/science.1196830). Via PBSNewsHour on YouTube.com.